Numerical simulation of polymer solutions in a single-screw extruder

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Abstract

Single-screw extruders are the most common equipment used for polymer extrusion. The study of the hydrodynamics of a polymer melts flow in the extruder channel is the basis for modeling and understanding the extrusion process. In general form, the extruder includes a straight section with a screw installed in it. In this study, the three-dimensional mathematical modeling of the polymer solutions flow in the metering zone of a single-screw extruder is performed. The influences of the screw geometry (L/D2 = 1 . . . 3) on the flow structure and the pressure drop are analyzed under a speed rotation up to 60 rpm. Aqueous solutions of 0.5% polyacrylamide (0.5% PAA) and 1.5% sodium salt of carboxymethyl cellulose (1.5% CMC) are considered as the working fluid.

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Kadyirov, A., Gataullin, R., & Karaeva, J. (2019). Numerical simulation of polymer solutions in a single-screw extruder. Applied Sciences (Switzerland), 9(24). https://doi.org/10.3390/app9245423

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